Derrick McReary's tombstone at Dukes Cemetery has a bizarre glitch where it appears completely non-solid — players can walk straight through it and even throw objects clean through the stone, as if it were made of air.
Source: Dukes Cemetery — CC BY-SA
The swingset achievement trick nobody expected
GTA IV
GTA IV's swingset can literally freeze your PlayStation
GTA IV
This swingset can make your car vanish into thin air
GTA IV
This playground in GTA IV can launch you across an entire city
GTA IV
Everyone thought this blood trail was Andrei's body being dragged to the sea — but the truth breaks the entire theory.
GTA IV
There's a secret code hidden on every Maverick's tail — and it might be a developer's birthday.
GTA IV